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###############################################################################
# Copyright (c) 2017 Koren Lev (Cisco Systems), Yaron Yogev (Cisco Systems) #
# and others #
# #
# All rights reserved. This program and the accompanying materials #
# are made available under the terms of the Apache License, Version 2.0 #
# which accompanies this distribution, and is available at #
# http://www.apache.org/licenses/LICENSE-2.0 #
###############################################################################
import re
from discover.events.event_base import EventBase, EventResult
from discover.events.event_instance_add import EventInstanceAdd
from discover.events.event_instance_delete import EventInstanceDelete
class EventInstanceUpdate(EventBase):
def handle(self, env, values):
# find the host, to serve as parent
payload = values['payload']
instance_id = payload['instance_id']
state = payload['state']
old_state = payload['old_state']
if state == 'building':
return EventResult(result=False, retry=False)
if state == 'active' and old_state == 'building':
return EventInstanceAdd().handle(env, values)
if state == 'deleted' and old_state == 'active':
return EventInstanceDelete().handle(env, values)
name = payload['display_name']
instance = self.inv.get_by_id(env, instance_id)
if not instance:
self.log.info('instance document not found, aborting instance update')
return EventResult(result=False, retry=True)
instance['name'] = name
instance['object_name'] = name
name_path = instance['name_path']
instance['name_path'] = name_path[:name_path.rindex('/') + 1] + name
# TBD: fix name_path for descendants
if name_path != instance['name_path']:
self.inv.values_replace({
"environment": env,
"name_path": {"$regex": r"^" + re.escape(name_path + '/')}},
{"name_path": {"from": name_path, "to": instance['name_path']}})
self.inv.set(instance)
return EventResult(result=True,
related_object=instance_id,
display_context=instance_id)
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